1#!/bin/bash 2# 3# Simple backing file reads 4# 5# Copyright (C) 2009 Red Hat, Inc. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=kwolf@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40. ./common.pattern 41 42# Any format supporting backing files 43_supported_fmt qcow qcow2 vmdk qed 44_supported_proto generic 45_supported_os Linux 46 47TEST_OFFSETS="0 4294967296" 48 49_make_test_img 6G 50 51echo "Filling base image" 52echo 53 54for offset in $TEST_OFFSETS; do 55 # Some clusters with alternating backing file/image file reads 56 io writev $(( offset )) 512 1024 64 57 58 # Complete backing clusters 59 io writev $(( offset + 64 * 1024)) 65536 65536 1 60done 61_check_test_img 62 63echo "Creating test image with backing file" 64echo 65 66mv $TEST_IMG $TEST_IMG.base 67_make_test_img -b $TEST_IMG.base 6G 68 69echo "Filling test image" 70echo 71 72for offset in $TEST_OFFSETS; do 73 # Some clusters with alternating backing file/image file reads 74 io writev $(( offset + 512 )) 512 1024 64 75 76 # Complete test image clusters 77 io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1 78done 79_check_test_img 80 81echo "Reading" 82echo 83 84for offset in $TEST_OFFSETS; do 85 # Some clusters with alternating backing file/image file reads 86 io readv $(( offset )) 512 1024 64 87 io readv $(( offset + 512 )) 512 1024 64 88 89 # Complete test image clusters 90 io readv $(( offset + 64 * 1024)) 65536 65536 1 91 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 92 93 # Empty sectors 94 io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 95done 96_check_test_img 97 98# success, all done 99echo "*** done" 100rm -f $seq.full 101status=0 102